Shoe locator for shoe-turning machines



D. BAUM SHOE LOCATOR FOR SHOE "IURIIING'MACHINES July 10, 1928.

Filed. Oct

2 Sheets-Sheet -l July 1o, 192&

BAUM

SHOE LOCATOR FOR SHOE TURNING MACHINES Filed oct. 29. 1925 ,2 sheets-sheet 2 Patented July 1G, 1923. 4 i* iran STATES nAvrn BAUM, cr LIVERMORE FALLS, MAINE,

SHOE LOCATOR non SHOE-TURNINGMAGH'INES.

Application iiledAOctobcr 29,` 1925. Serial No. 65,616. n

T My invention relates to a device applicable for use in connection with a machine for turning shoes and the like, a patent on which was granted me Nov. v17, 1925, numbered 5 1,562,282 A A A l The principal object of my invention is to provide means to automatically position a shoe after it has been placed over the turning-tube and receding-plunger of the before-l mentioned machine so that when the turningplunger descends it will contact with the sole at the proper distance fro-m the point or tip thereof and thereby prevent the toe end of the shoe projecting above or `beyond the re- A15 ceding plunger overmuch, which condition would likely cause Ithe .sole to become wrapped around the end of the turningplunger and produce a jam within the turning-tube.y d Another object is to expand or widen the interior space at the toe' end4 Aof t-he shoe which has the eiect of limbering the sole and creating a condition favoring .an easier start at the preliminary .turning of the shoe. A still further object of my invention is that it greatlyexpedites the work of properly positioning the shoe in the turning ma chine, due largely to the fact that with this improvement the operator is not required to expend as much time nor give as closey attention to this particular detaily in the operation 'of the machine as would otherwise be foundV necessary. l A A y A* Hereinafter in this specification I have dess scribed, and in the drawings accompanying illustrated, so much only of my shoeturning machine previously referred to, as will give a clear understanding of how my present invention functions .in connection with the op- 10 eration of that machine in the process `of shoefturning, and in the drawings which disclose the' preferred embodiment of the invention, and in which like characters of reference indicate similar parts throughout all '45 the different views, A f

A Fig. 1 is a side elevation of my shoe-turning machine with my locator attached there'- to; l l Figs. 2, 3, 4, 5 and 6 are fragmentary secfiH tional details showing, consecutively, diiferent stages of the turningoperation and the position of my locator at each stage, y

l Fig. 7 is a sectie al view of the locator, taken on line 7 7, Fig. 2; A A

Fig; A8 shows an. alternate method of machine; Y Fig. 9 shows an alternate method of 0peralting the locator; d' f F igs". 10,11, 12 and 13' are sectional details, showing the form of locator illustrated in Fig. 9 in different positions during the turning operation, f A A d A Figs. 14 and 15 are sectional viewsofthe toe end of a shoe, illustrating the effect produced by thelocator infwidening .the toe spaceofthe shoe, an d A v Y Fig. 16 is a plan view of the locator shown in Fig. 9. A f

,Fig `1 illustrates in a condensedform the essential lportions; vof myvAshoe-turning mamountingy the locator on the A'shoe-turning chine. ll is the pedestal, secured to which by the screws 2 is the column'. A A bracket 4, fixed to the pedestal (1), carries the horizontally reciprocable slide 5,'on which issuperimposed the expansible turning-'tube 6,- this latter enclosing the receding-plunger 7 whichr ismounted yieldingly within the-tube. Theturningplunger'8,adjustably'secured to v and depending from the bracket 9 which is 80 fixed to the rack-shaft 10, isadaptableyof vertical reciprocation by means of the seg- `mental gear 11 engaging the rack cut on the rack-shaft-,f-Athe actuating `agent being the hand-lever 11. q A.

On the downward movement of the-rack. shaft (10) the vblock 12 will, at-the pro-per time, ,engage theroll. 13 -pivoted in a bearing in theslide 5, causingl the latter to .move and .carry theturning-tube 6 vinto vertical alignment with the turning-plunger ,8.y A I yIn Fig. A2Iillustrate portions of the turn'-v Y ing-plunger 8,. the receding-plunger 7 and the turning-tube 6, with. my shoe locator mounted on theturning-plunger and a section of the toe end of a shoe 7'- encompassingl the receding plunger. The parts as shown il- A .lustrate the proper and normal positions-of A the turning elements previous to the turning in-oper# mo,

operatioml-f-.or in other words inthe ative position of all the parts; A -AWhenthe turning-plunger (8) descends to a, position shown in'Fig. 3, and while yet in -disalignment with` the turning-tube; (6), it abuts on the solev oftheshoenear the toe end. 105 The block 12 has at this point .just come into eontactqwithy the 'roll 13 but the immediate, further 'downward movement of the tacky shaft ldlw'ill force the slide oii'twadlyy bringin'gtheturninghtuloe 6 directlyileiath In! 6 which illustrates the toe end of the shoe just starting to be turned within the tube 6. In practice,`the operator will ,often place the shoel on the receding-plunger as it is y preferably somewhat curved in form. It is tion. c

, ment Lof thefturning-plungen the deiiecting shown in F ig. 4 in full lines. Here thepoint or'v tip of the shoe is too far advanced outhe roll of the receding-plunger, and the turning- `plunger, in case there was no provision madeto prei'ent it,`wouldabuton the sole agreater distance from the tip end, toward the heel, than would be desirable. i v

f `In myattempt to remedy this defect in the vturning elements of the shoe-turner I have conceived the device which 1 v call'the shoe locator,identified bythe reference character 14. 'It consists of a sleeve14 with an apron or deflecting member 14 depending from and extending outwardly ofthe sleeve and positioned, relative to the turning-tubes() as `to strike, when descending, the extreme tip ofthe shoe whenever thev latterhappenshto bepla'ced in the too` far advanced position previously referred to. It may be. pivoted, asseen '25, so ask to be adjusted t-odifferent angular positions, relative tothe axis of the turning-plunger,and any change in theangu'lar'frelation will correspondingly effect the extent of the rise of the sole above the re`- ceding-plunger. n 1

In Fig. 4 the locator, shown in fulllines, isrepresented as just coming into contact with the shoe when in the advanced posi- 0n` the continuing downward moveinember will have descendedt'o the position rshown in dotz anddashlinesl (same figure) which 'willh'ave' moved the shoe backwardly from its advanced position tio that shown in dot "and dash lines,`+or substantially the same position as itis shownin Figs. 2 and 3;-this'position, however, being subject to change by e' adjust-ing lthe deflecting to other angular positions.

Referring to Fig.` G, it will be observed i VVthatthe turning-plunger'(8) has enteredv'the turning-tube `(Y), starting the preliminary turning of theshoetip, and that in thisy posi# tionethe function of the locator Vhas been eX- ercised andvits dut-y fulfilled, and that for a time, or Vduring the 'remainder ofthe' turn'- ing operation it will remain inr its present position bymeans which will behereinafter disclosed. e c l e' Itis obvious however, that, asthe locator v4can move no further downwardly," some yielding.v meansv must be employedand coaction produced between the turningplunger cator can take place.

member per end' abutting on 'the plug 16 and the.

lower end thrusting on the washer .17 which is in Contact with the pin 18. This pin (18) is viXed in the sleeve of the locator and reciprocates in the slots 19 cut in the tubular portion of the turningplunger;'lit (18) thus serves tov compress the helical spring 15 and also to actv inholding'the locator against rotation on the turning-plunger. `Vihile the ability ofthe locator to yield andrecede over the turning-plunger"when upward pressure or resistance isappliedthereto is a feature employed principally to allow the turning# plunger to telescope the'turn'ing-tube and complete the turning, it also acts inthe ca- ;pacity of al buffer to lcushion the impact of the locator against the shoe tip in the event that the shoe hasbeen placed in the too far advanced? position inthe machine;

'Reverting to Fig. 6 it' will be clearly seen that further .downward movement of the turning-plunger would, if no provision was made to guard against it, allow the locator to bear stronglyagainst the shoe and prevent 11" it turning easily over the edgeV of the turning-tube. i

. y in F10. 1 i' illustra-amy mailed raking 20, slidable in a'hole 21 in which is a'stop-rod 22` the lower end ofwhich is secured inan offset portion 28 ofthe locator and the 'upper end threaded to receive the nut 24. Y

`Vhenthe turning-plunger` 8 descends into the turning-tube v6 a distance such as is shownin Fig. 6, the nut 241on thestopa'od 22 will haveabuttcd'on the bracket 2O and no further movement downwardly of the lo* ,tion just clearv of the shoe and remainsthus during 4the turning operation.

vIt is now in a posii tot By observing' Fig. `1 it will beapparent y that mysho'e' locator mightbe applied to the slOe turning' machine in various other :i i' ways than the one I have pist described and .n illustrated in myl drawings, and still function in substantially the same manner. For

instance, it might be mounted on the rackshaft 10, or any elementl in the machine having reciprocating movement. synchronizing with the movement of this shaft; o r` it might be installed somewhat after the man'- nerofthe locator'showninFig. 8, which is shown as a manually'operated' device, .but

which,fit is quiteV conceivable, might be made to operate'l automatically;

In all instances, however, the characterisi tic feature of the locator embodying the capacity to' properly locate fa shoe indiii'en ently placed by the operator overfthe turningl tube y.of the machine remains the' same',

.whichever methody of application may be adopted; and the two fundan'iental'and cssential features which reside `in the device are its ability to come into accurate operative position at the proper time,-per foi'ming lits function as the shoe locating agent, and

then tovwithdraw from this position soy as i tobe removed from all interferencewith the shoe while being placed in position onthe machine. V

In the shoe industry the demands of the trade necessitate frequent changes in the` hereinafter contained it will be observed a ri that generic characteristic features eXist in both designs and that either might .be employed and function properly in the shoe turning operation.

In Figs. 9 to 13 inclusive this modified form of locator is illustrated. member is herepliung pivotally at 25, from which point it may oscillate at certain times. The connection between the stop-iod 22 and the operating arm 26 of the deflecting meinber is also pivotal, as seen at 27. An ear 28, having an adjusting screw 28', restricts the oscillation of the d efiecting member to a predetermined amount in one direction, and an ear 29, with an adjusting screw 29', serves in a like capacity, but in the opposite direction. A' helical spring 30, mounted on the delecting member pivot pin 25 holds this member (14) in its normal, inoperative position, as seen in Figs. 9, 10 and vl1.

In describing the locator having the pivotally hung deflecting member, the sequence of movements may best be followed by observing' in consecutive order'the Figs. 9 to 13 inclusive. The shoe havingv been placed on the receding plunger 7 (see Fig. 9), the movement of the rack-shaft 10 will bring the turning-plunger 8 to the position seen in Fig. 10,-the deflecting member abutting on the -end of the shoe. In Fig. 11 is seen lthe result of the next movement in operation which is to bring both plungers (7 and 8) into vertical alignment, one with the other,

which move bends the tip of the sole slightly inward.

'It might be well to explain, at this point, that it i-s desirable, if not quite essential, to flatten or broaden the` tip of the shoe so as The deflecting to be better able to'begin'tlie tnrn'ingas' closely aspossible to the'toe end'ofthe shoe.Y T o do this would open or enlarge the narrow conned space at the endoftheslioe, as

in Fig. 14, andfifesult in'the forni as seen in Fig. i5. y

With this object in view I have pivoted the deflecting member vat such a point on the sleeve of th'e locator. as will, on the next, or continued j movement gof the turning` plunger downwardly* allow it to "impin'ge strongly on the extreme point of theV sole, rolling the latter over somewhat andtending to open or enlarge the space within the Thus suspended on the stop-rod 22ythe locator remains until the turning-plunger has completed the turning of the shoe,-after which all parts rise to their normal or inoperative position, as seen in Fig. 9.

Having thus described my invention, what I claim is: l; In a shoe turning machine, a reciprocable plunger, a deflector member yieldingly and oscillatively mounted on said plunger,

means to actuate -said plunger whereby said deflector member may be lbrought into engagement with the upper of a shoe, loosely positioned in said machine, for the purpose of automatically and positively positionin the shoe for the subsequent turning thereo 2. In a shoe turning machine, a reciprocable plunger,.a deflector member yieldingly mounted on said plunger, means to hold said deflector member, at predetermined times, at a spaced distance fromv the toe end. `of a shoe loosely mounted in said machine,'means tok bring said deflector member into contiguous and forcible relation with the shoe in said, machine, and means whereby they con tacting face of the said deectornieinber may be presented to the upper of the shoe at l various, predetermined angular relations` therewith.

3. In a shoe turning machine, a plunger z.' i'

reciprocably mounted on said machine, 'a d`eiiector member slidably mounted on said plunger, yielding means acting to force said deflector member toward the end of said plunger opposite its fixed end, means to hold said deflector member from completewitlnl drawal from olf said plunger, means to ad- Just said deflector member on said plunger so that that portion of its surface adapted to engage the toe of a slice loosely positioned in saidmachine may. be presented to the shoe at various relative and predetermined an-v gles therewith,` and means tov aotuate said plunger. Y f

4:. In a shoe turning machine, a plunger' reciprocable in said machine, a deflector member yieldingly mounted on said plunger, means to bring said deflector memberalternately into vand out of Contact with a shoe placed in said machine, means to swivel said deiector member on and` relative to said plunger, and means to limit' the extreme movement of said delector member-'toward the shoe on said machine.

Lever/a2v `5. In? a shoe turningmachine, a plungerl reciprocable on saidmachine, a deflector member slidably mounted on said plunger,

yieldingmeans acting to force said deflector member o the free end ofvsaid' plunger, means to cause said deflector member to ,swing on its pivotal point subsequent to its contacting with theV toe or' a shoe mounted in said machine, whereby it may actto' lector member'jshall cease. f

DAVID BAUM. 

